Island



(No Model.)

E. DIXON.

SADDLE FOR TOP ROLLS 0F SPINNING MACHINES. No. 354,400, Patented Dec. 14, 1886.

WITNEEEEE. INVEVTUH. A%M%% 3km am Z. @M- W%% UNITED STATES PATENT OFFICE.

EZRA DIXON, on BRISTOL, RHODE ISLAND.

SADDLE FOR TOP ROLLS OF SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 354,400, dated December 14, 1886.

Application filed July 7, 1894. Serial No. 136,984. (No model.)

To aZZ whom it may concern:

Be it known that l, EZRA DIXON, of Bristol, In the county of Bristol and State of Rhode Island, have invented certain new and useful Improvements in Saddles for Top Rolls of Spinning-lllachines, of which the followingis a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to that class of devices which are arranged to rest upon the top rolls in drawing and spinning frames for the purpose of holding the top rolls down upon the lower rolls; and the object of my invention is to produce a saddle which shall be capable ofeX- tension, so as to rest only on the front and back rolls, leaving the middle roll free, and also of contraction, so as to rest upon both the front and back and middle rolls, and which may be adjusted to long and short staples without removal from the rolls.

To the above purposes my invention consists in certain peculiar and novel features of construction and arrangement, as hereinafter described and claimed.

My invention also further consists in certain peculiar and novel details of construction, the purpose of which is to facilitate the manipu lation and operation of the saddle.

In order that my invention may be fully understood, I will proceed to describe it with referenceto the accompanying drawings, in which- Figure 1 is a side elevation of my improved saddle in contracted condition. Fig. 2 is a longitudinal section of the same. Fig. 3is a longitudinal section of my improved saddle in extended condition. Fig. 4 is a longitudinal section of the upper member of the saddle. Fig. 5 isa perspective view of the lower member of the saddle.

In drawing long staple only the front and rear drawing-rolls are used, while in drawing short staple all three of the rollsare brought into use; consequently, when long staple is to be drawn, it is desirable that the middle roll should be left free from the pressure of the saddle. On the other hand, when short staple is to be drawn, the middle roll should be acted upon by the saddle, and inasmuch as frequent changes occur in the character of the staple to be drawn, it is of the highest importance that in the expenditure of labor, both of which effects are highly objectionable.

An important advantage of my present in vention is that these objections are completely avoided, and the adjustments of the saddles are made easily and quickly and without removing the saddles from the rolls.

In the accompanying drawings, A designates the upper, and B the lower, member of my improved saddle.

The upper member, A, is of oblong rectangular form, and carries at its outer end an enlargement, a, which is hollow, so as to contain a suitable quantity of lubricant. From the bottom of the cavity in the enlargement a extends a channel which opens at its lower end into the top of a curved depression formed in the under side of the enlargement a, and constituting a bearing for the member A upon the front roll. Upon the upper side of the member A, just back of the en largement a, is formed a v shaped notch, a, which receives the stirrup by which the saddleweight is suspended from the upper member, A. The central portion of the upper member is formed with an elongated opening, as shown in Figs. 2, 3, and I, and upon each of the longer sides of this opening is formed a rail, a which is divided at its center by a step, a into an upper and a lower portion, the lower. portion lying in front of the upper portion, as shown in thefi gures j ust referred to. The rear end of the opening is bounded by a solid portion, a, of the member-body, and atthe rear end of the portion a" is formed a spur or projection. a The under side of the solid portion a is formed with the convex portion a, which eX- tends longifiudinally of the member A. The upper member,with its several parts above described, the purposes of which willbe stated hereinafter, is formed, preferably, of a single integral casting, as is shown in the drawings.

The lower member, B, is formed at its front end with an upwardly-extending projection, b, the upper end of which is formed with a T end or head, as shown in Fig. 5. On its up a per side the member B is formed with achannel or depression, I), which is designed to receive a suitable quantity of lubricant. At about the middle of each of the longersides of this channel are formed two inwardly-extending studs, 1) b while from the bottom of the depression I) extend three channels which open respectively into the tops of three curved depressions, b b" b which are formed on the under side of the member B, and constitute the bearings for said member upon the middle andback rolls.

The member B, with its several parts above described, constitutes, preferably, a single integral casting.

In order that the operation of the device may be fully understood, let it be supposed that R RR" in Figs. 1, 2, and 3 represent, respectively, the front, middle, and back rolls. The lower membcr B, is connected to the upper member, A, by inserting the upper end of the projection 12 through the central opening of the member A, from beneath the latter. This insertion is accomplished by placing the member B at right angles to the member A, and then passing the projection b upward into the central opening, after which the member B is turned into alignment with the member A, whereby the cross or T head of the projection I b rests upon the rails a the width of the T- head being greater than the distance between the rails, and slightly less than the distance between the inner faces of the sides which carry said rails. The two members will now be securely connected by the T-head. When short staple is to be drawn, the saddle is placed in contracted condition, as is shown in Figs. 1 and 2that is to say, the upper member is carried along upon the under member till the projection b of the latter rests nearly or. quite against the front end of the central opening of the former. In this condition of the saddle the convex portion a of the upper member rests on the two rearmost studs, 1) b, of the member B, and consequently said portion does not rest upon the wicking in the channel I). It will also be seen that in this contracted condition of the saddle the front end of the upper member rests by its curved bearing on the front top roll, R, while the lower member rests by its curved bearings b and b, respectively, on the middle roll, R, and the rear roll, B In this position the lower member is caused to press upon both the middle and back rolls by the weight (not shown) which depends from the notch a of the upper member, A, and this position of the lower member is permitted by reason of the T- head of the projection B being over the lower portions of the rails a Now, supposing, the saddle to have been operating in its contracted condition,and that it is desired to draw long staple, in this event, as before stated, it is necessary that the middle roll, R, be freed from the pressure of the lower member. This is accomplished by placing the finger,or a suitafter which the lower member is drawn back till its projection b, or, more correctly, the T- head of said projection, is over the upper portions of the rails 66*, and in this condition, in which the saddle is said to be extended, the convex portion a of the upper member rests upon the two forward projections, 2) b while the lower member rests only upon the back roll, B, by the bearing I). The relative position of the portion a to the studs Z) and the relative position of the projection b to the upper portions of the rails to", are such that the front end of the lower member is held in raised position, and consequently does not touch the middle roll, R, while at the same time the weight suspended from the member A presses the rear end of the member B upon the rear roll, B. When short staple is to be drawn again, the finger,or the edged implement, is ap plied beneath the' spur a as before, the rear end of the member A is raised and the member B is pushed forward to the position originally described. These movements of the members are accomplished without removing the saddle from the rolls, and are done with the utmost ease and rapidity, thereby saving time and labor.

I have shown the members as provided with the usual wicking, which is placed in the re ceptacles for the lubricant and passed through their channels to the bearings. It will be seen that the convex portion a will never rest upon the wicking, but will always rest and move upon the studs b and thus remain always above the wicking.

I am aware of the heretofore-employed construction of a top-roll saddle made of two parts which are adjustable on their lengths relatively to each other, and whereby the saddle-bearing for the middle roll may be rested on said roll or elevated thereabove, while the saddlebearings for the respective end rolls remain practically normal, or unchanged in position, in order to place the pressure upon or take the pressure off the said middle roll, and I therefore disclaim such a construction in a saddle; but,

Having thus described my inventioml claim as new and desire to secure by Letters Patent-- 1. The combination, with an upper member provided at the front end with a bearing for the front roll, of a lower member connected with and sliding under said upper member and'provided upon the under side with three bearings or depressions, of which the inner bearing is for the middle roll. and the central and outer bearings are both for the back roll, allconstructed substantially as described, whereby the members may be relatively adjusted,and the inner and outer bearings of said lower member may rest upon the middle and. back rolls, respectively, or the lower member may be moved to shift the bearings for the back roll from the outer said bearing to the IIO center bearing and the middle roll be cleared by said lower member, substantially as an for the purpose herein set forth.

2. The combination, with an upper member provided with a bearing for the front roll and having a longitudial opening formed in the body thereof, of a lower member provided with a series of bearings for the back and middle rolls and having a projection for interlocking with and sliding in said opening in the upper member, substantially as described, whereby the upper member may rest upon the front roll,and the lower member may either rest upon both the back and middle rolls at once, or may be slid to shift its bearing for the back roll, and may then only rest on the back roll, substantially as and for the purpose herein set forth.

3. The combination, with the upper' member provided at its front end with a bearing for the front roll and at its rear end with a convex bearing, and also provided with a central opening having a divided rail upon each of its longer sides, of a lower member provided at its front end with a T-headed pro jection to engage with the divided rail, and having a central depression formed with studs on its longer sidesto receive the convex bearing, and with bearings for the middle and top rolls, substantially as described.

4. The combination, with the upper member, A, provided with a bearing for the front roll and formed with a longitudinal opening therein, of the lower member, B, provided with three bearings, of which the inner one is V for the middle roll and the central and outer bearings are both for the back roll, said member B provided with a projection working and sliding in said opening in the member'A, substantially as described, whereby the bearing of member A may always rest upon the front roll, and the bearings of member B may either rest upon the back and middle rolls, respectively, as described, or the member B may be slid to shift its bearings for the back roll and may then clear the middle roll and rest only upon the back roll, all substantially as and for the purpose herein set forth.

5. The combination, with the member A, having the enlargement a, with the hearing at its base, the opening,with the rails a", the convex portion a, and the spur of, of the member B, having the T-headed projection b, the depression b, the studs 1), and the bearings b 1) b as specified.

' 6. The combination, with the member A, having the enlargement a,with the bearing at its base, the notch a, the opening, withthe rails a, and the body a, with the convex portion a and spur a of the member 13, having the T-headed projection 11, the depression b,with the studs 1)", and the bearings b I) W, substantially as specified.

In witness whereof I have hereunto set my hand.

EZRA DIXON.

Witnesses:

J. A. MILLER, Jr. M. F. BLIGH, 

